Comparison of Wet and Dry Stirred Media Milling from Energetic and Mechanochemical Point of View

Rácz, Ádám and Bohács, Katalin and Kristály, Ferenc and Gregus, Éva and Mucsi, Gábor (2018) Comparison of Wet and Dry Stirred Media Milling from Energetic and Mechanochemical Point of View. In: XXIX. International Mineral Processing Congress, 2018.09.15-21., Moszkva, Oroszország.

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Abstract

Stirred media mills are widely used in the industry for fine grinding. Most of the applications work in wet mode, however dry grinding in stirred media mill comes forward more frequently nowadays. The present paper deals with the differences and similarities of the wet and dry grinding in stirred media mill from energetic and mechanochemical point of view as well. Grinding experiments in batch stirred media mill were carried out with different materials. During the experiments zeolite and kaolin were used as feed material. The grinding experiments were carried out at different stress energy and stress number values; the grinding work was measured during milling. After grinding X-ray diffraction (XRD), Fourier Transform Infrared Spectroscopy (FTIR), particles size analyzes by laser scattering were carried out on the ground materials. As a result of the systematic grinding and analytical measurements a comprehensive comparison was carried out on the wet and dry grinding and their usefulness for mechanical activation in stirred media mill.

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